Boot last



Dec. 9, 1930. G. J. DEMOUCRON BOOT LAST Filed Eeb. 24, 1928 2Sheets-Sheet G. J. DEMOUCRON BOOT LAST Filed Feb. 24, 1928 Dec. 9, 1930.

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Patented Dec. 9, 1930 UNITED STATES GASTON J'ULES DEMOUCBON, OF PARIS,FRANCE Boo'r LAST Application filed February 24, 1928, Serial No.256,751, and in France February 24, 1927.

The present invention relates to boot-lasts and the main object of thesaid invention is to ensure that the tensions on the two flanks vide asimple boot-last which can be taken to pieces so as to easily ensure thereplacement of the various parts in case of breakage of one of them.

Forms of construction of improved bootlasts in accordance with theinvention are illustrated by way of example only, in the accompanyingdrawing in which:

Fig. 1 is an elevation and longitudinal section of a first form ofconstruction.

F ig. 2 is a corresponding plan view.

Fig. 3 is a plan view and partial section of a second form ofconstruction.

Fig. 4 is an underside partial plan view of a third form ofconstruction.

Fig. 5 is an underside partial plan View 2 of a fourth form ofconstruction.

The boot-lasts described and illustrated each comprise a resilient blade1, one of the ends of which is provided with a'member 2 taking a bearingon the rear stiffener of the boot or shoe, and the other end of which issecured on a member 3 constituting a connection between the resilientblade 1 and two movable parts 4 arranged on either side of the member 3and used for uniformly pressing the inner flanks of a boot or shoe. Themovable members 4 are connected at their front part by any suitablemeans allowing a relative displacement, on the one hand of these members4 relatively to each other and, on the other hand, of the wholestructure constituted by these two members relatively to the member 3. VV

In the example illustrated in Fig. 1 the device for connecting themembers 4 is composed of a tube 5, slightly curved and freely sliding ina perforation 6 provided in the member 3. The ends of the tube 5respectively fit into perforations ,7 formed in the members 4. The tube5, after assemblage,

is flared at its ends for maintaining the memhas 4 in a positioncorresponding to the maximum spacing apart of these'latter.

A spring 8 fits in recesses 9 provided in the members 4 and its endsbear on'the bottoms of the said recesses. The spring 8 is guided by themember 3 and, for that purpose, it freely passes througha perforation 10formed in the'latter. The front connection of the members 4 which isrealized by the tube 5 can be very simply obtained by a screw secured inone of the movable members 4 freely playing in theperforation 6.

It will be seen that the end of the boot-last, after its introduction inthe boot or shoe, suitably orientates relatively to the latter, andindependently of the mounting, by sliding of the spring 8 in the opening10 of the member 3. The flanks of the boot or shoe then directly reactoneach other through the medium of the members 4 and of the spring 8.The uniform distribution of the tensions on the flanks-of the boot orshoe is obtained either with a standard boot-last indifferently used forthe left shoe or the right shoe or boot, or

by means of special boot-lasts adopted for certain boots or shoes andwhich comprise a right boot-last and a left boot-last.

In the example illustrated in Fig.3, the connection between the members4 is ensured, at the front part of the latter, by a small plate 10 whichis rigidly secured to the member 3 through the medium of rivets 11 forinstance. The member 10 is provided with suitably arranged ports 12 inwhich can move rivets or screws 13 rigid with the members 4. The smallplate 10 is arranged either under the members 3 and 4, or in portsprovided in the said members. In this form of construction, theresilient device interposed between the members 4, is constituted by aresilient blade 14 which freely moves, on the one hand, in a port 15formed in the member 3 and, on the other hand, in grooves 16 provided inthe sides of the members 4.

In the example illustrated Fig. 4, the front connecting member of themembers 4 is constituted by a small V-shaped plate 17 capable ofpivoting on the member 3 about an axis 18. Screws 20, rigid with themembers 3,

pass through ports 19, provided at the ends of the small plate 17.

In the example illustrated in Fig. 5, the front connecting element ofthe members 4 is constituted by a small plate 21 centrally provided witha port 22 permitting the displacement of this plate 21 relatively to themember 3. The members 4 are pivoted, in this case, about axes n3, asillustrated in Fig. 5. The resilient members interposed between themembers a are constituted, in this form of construction, by resilientblades 24, secured on the member 3, at 25, and taking a bearing, on theparts 4, by engagement of their free ends in grooves 26 provided in theinner sides of the members 4.

The boot-lasts described by Way of example only can be easily taken topieces and the various parts constituting them can be replaced in caseof breakage of one of them.

What I claim as my invention and desire to secure by Letters Patent is:

1. In a boot-last comprising a part for connecting a heel-piece with atoe piece, a central member perforated at the front part, flank membersperforated at their front part, a. connecting member freely fitted inthe perforations of the central member and of the flank members, andresilient members for spacing apart the two flank members.

2. In a boot-last comprising a part for connecting a heel-piece With atoe piece, a central member perforated at the front part, and in itsmiddle or rear portion, flank members perforated at their front part, atube flared at its ends and freely fitted into the front perforation ofthe central member and the front perforations of the flank members, anda resilient member interposed between the flank members and freelypassing through the middle or rear perforation of the central member.

In testimony whereof I have signed my name to this specification.

GASTON JULES DEMOUORON.

